Data interaction method and device of vehicle-mounted ATO and vehicle-mounted ATP

Abstract

The invention provides a data interaction method and device for a vehicle-mounted ATO and a vehicle-mounted ATP. The method comprises the steps of creating an ATO process and an ATP process, wherein the ATO process comprises a first thread and a second thread; reading ATP data through a reading pipeline, storing the ATP data in a first-level reading buffer area, and mapping the data in the first-level reading buffer area to first data; after the second thread completes the target service, reading the first data through the read-write lock, and storing the first data in a second-level read buffer area; reading second data through a read-write lock based on the first thread under the condition that ATO data is stored in a first-level write buffer area of a second thread and the ATO data is mapped to the second data, and storing the second data in a second-level write buffer area; and writing the second data into the ATP process through a writing pipeline of the first thread. According to the method, the train-mounted ATO can obtain accurate train speed information and position information in real time, and accurate control over the train is achieved.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to a data interaction method and device for a vehicle-mounted ATO and a vehicle-mounted ATP. Background technique [0002] Because the vehicle-mounted ATP (namely: automatic train protection subsystem) and ATO (namely: train automatic driving subsystem) run on different hardware architectures, the pulse information collected by the speed measurement and distance measurement module is calculated by the application layer of the vehicle-mounted ATP to obtain train speed information and location information, and then transmitted to the on-board ATO through the network, the delay of data transmission often causes the on-board ATO to be unable to obtain real-time train speed information and location information, resulting in inaccurate stops on the platform of the on-board ATO, and level jumps in the control car. . Even if the vehicle-mounted ATO equipment directly collects pulse in...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a method and device for data interaction between a vehicle-mounted ATO and a vehicle-mounted ATP, which is used to solve the defect that the train speed information and position information obtained by the vehicle-mounted ATO in the prior art are not real-time accurate information, and realize that the vehicle-mounted ATO can obtain accurate information in real time Train speed information and position information to achieve precise control of trains

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